Meaning that if you only have 1 of them, and that’s all you expect for a while, you lucked out a little bit. I just got my first 5 star, old man logan yellow and after thinking for a bit, I’ve determined that I lucked out quite a lot with this.
yep, thats about the best one. SS blue is not bad either for a climber
True healing covers are always disproportionately strong. The difference between a little healing and no healing is way more useful than the difference between a little damage and no damage. So oml yellow, ss blue, and Phoenix green all have extra value in that they provide healing or quasi healing.
SS blue also has immunity to stun, which is an awesome (and unique) ability.
OML yellow gives you regen which is cool, but if you get the black one you can transform him, and then use his black power, so it is also quite good.
Then SS blue makes him unstunnable.
And Phoenix green, makes her resucitable, with her very powerful green AoE
Those are the best ones, I guess OML yellow and Phoenix green being the best of the four.
Heh, so of the 2 5* covers I’ve managed to pull, 1 was OML Yellow, the other was Phoenix Green… sometimes i get lucky 
Course, to make them useful I’ll need a few more covers and a whole lot more ISO 
Regards,
Cypr3ss.
A nice thing about Phoenix green is that the damage ability already maxes out at one cover, after that it’s only the character level that matters. So even at one cover you get a nice 4K team damage blast.